符合標準EN55022 - B類標準意法半導體公司的EVLVIP17 - 5WCHG是5W開關電源（SMPS）設計，采用意法半導體公司的VIPER17HN，具有低待機功耗的特性，主要用作旅行電池充電器，如手機，掌上電腦和電子游戲的電池充電。充電器的輸入(ru)電(dian)(dian)(dian)(dian)壓為(wei)90 - 264Vac，頻率45 - 66Hz，輸出(chu)電(dian)(dian)(dian)(dian)壓5.1伏直流± 2％，輸出(chu)電(dian)(dian)(dian)(dian)流1 ± 5％，電(dian)(dian)(dian)(dian)纜(lan)壓降補償(chang)（0.2V的/甲(jia)），無負載在高火線電(dian)(dian)(dian)(dian)壓的輸入(ru)功率低于100兆瓦(wa)，短路(lu)(lu)保護，并在短路(lu)(lu)故(gu)障消除后自動重起，印刷電(dian)(dian)(dian)(dian)路(lu)(lu)板尺寸為(wei)53 × 26毫(hao)米，安(an)全特性和EN60065兼(jian)容，電(dian)(dian)(dian)(dian)磁干(gan)擾滿足標準(zhun)EN5022 - B類(lei)標準(zhun)。

     本文介紹了EVLVIP17 - 5WCHG主要特性，電路板外形圖以及詳細電路圖和所用材料清單（BOM）的。 EVLVIP17 - 5WCHG：5瓦的低待機功耗電池充電器演示板的基礎上VIPER17HN的EVLVIP17 - 5WCHG演示板是一個5瓦的作為，如移動電話，掌上電腦和電子游戲應用旅行使用開關電源。該委(wei)員(yuan)會(hui)的(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)證明(ming)該VIPER17HN離線高電(dian)(dian)(dian)壓(ya)轉(zhuan)換(huan)(huan)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)性(xing)能。其低功耗和其他特性(xing)，由于良好的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)氣(qi)性(xing)能實(shi)現。為了獲(huo)得恒定的(de)(de)(de)(de)(de)(de)輸出(chu)電(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)流(liu)調節（簡歷/消委(wei)會(hui)），TSM1052簡歷/消委(wei)會(hui)控制器(qi)(qi)(qi)上使(shi)用的(de)(de)(de)(de)(de)(de)次(ci)要方(fang)面。這TSM1052是(shi)(shi)(shi)非(fei)(fei)常(chang)適(shi)合這種類型的(de)(de)(de)(de)(de)(de)應用，提供了一(yi)(yi)個(ge)非(fei)(fei)常(chang)小的(de)(de)(de)(de)(de)(de)封裝(zhuang)非(fei)(fei)常(chang)低的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)消耗（采(cai)用SOT23 - 6L）。該轉(zhuan)換(huan)(huan)器(qi)(qi)(qi)實(shi)現了一(yi)(yi)個(ge)反(fan)激拓撲結構，這是(shi)(shi)(shi)理想的(de)(de)(de)(de)(de)(de)低功耗，低成(cheng)本的(de)(de)(de)(de)(de)(de)隔(ge)離轉(zhuan)換(huan)(huan)器(qi)(qi)(qi)。在小學(xue)方(fang)面，VIPER17HN使(shi)用。該IC是(shi)(shi)(shi)毒蛇的(de)(de)(de)(de)(de)(de)+家族，從它的(de)(de)(de)(de)(de)(de)附加功能和保(bao)護的(de)(de)(de)(de)(de)(de)利益。此設備，設計(ji)采(cai)用了一(yi)(yi)個(ge)多芯片方(fang)案(an)，包括(kuo)一(yi)(yi)個(ge)先進的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)模式PWM控制器(qi)(qi)(qi)和雪崩的(de)(de)(de)(de)(de)(de)小幅下降，7封裝(zhuang)堅固800 V的(de)(de)(de)(de)(de)(de)功率MOSFET。該轉(zhuan)換(huan)(huan)器(qi)(qi)(qi)在連續和非(fei)(fei)連續導電(dian)(dian)(dian)模式工程(cheng)取決于輸入電(dian)(dian)(dian)壓(ya)（電(dian)(dian)(dian)路有一(yi)(yi)個(ge)范(fan)圍廣闊的(de)(de)(de)(de)(de)(de)輸入）和輸出(chu)負載。

     該控制(zhi)器(qi)(qi)后綴為“H”規定，開關(guan)頻率是115千(qian)赫(he)，內(nei)部(bu)固定的，允許(xu)的功率元件(jian)減少。應用(yong)程序設計，以(yi)降低整體(ti)元件(jian)數量和(he)適配器(qi)(qi)的成本。輸(shu)入部(bu)分(fen)包括一個浪涌電流限制(zhi)和(he)故障(zhang)保(bao)護(hu)，arectifier橋，兩條電解電容和(he)大量作為前電感(gan)熔斷電阻(zu)器(qi)(qi)高端AC - DC轉換器(qi)(qi)和(he)EMC濾波器(qi)(qi)。

    變壓(ya)器(qi)是(shi)一(yi)個(ge)(ge)(ge)層類型，利用一(yi)個(ge)(ge)(ge)標(biao)準的(de)(de)(de)(de)(de)EF12.6鐵氧體磁芯，并與大約(yue)75 V電(dian)(dian)(dian)壓(ya)設(she)計的(de)(de)(de)(de)(de)反映。這(zhe)個(ge)(ge)(ge)特(te)點(dian)是(shi)變壓(ya)器(qi)繞組的(de)(de)(de)(de)(de)技術，消除了常(chang)用的(de)(de)(de)(de)(de)?1安全(quan)電(dian)(dian)(dian)容器(qi)的(de)(de)(de)(de)(de)需要之間的(de)(de)(de)(de)(de)主要和次(ci)要方面(mian)。一(yi)個(ge)(ge)(ge)RCD鉗位網絡用于漏感消磁。該(gai)(gai)電(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)(de)啟動是(shi)由內(nei)(nei)部管理，高壓(ya)的(de)(de)(de)(de)(de)VIPER17HN啟動發電(dian)(dian)(dian)機。這(zhe)條賽道的(de)(de)(de)(de)(de)典型匯3電(dian)(dian)(dian)流(liu)從(cong)漏極引腳和收費內(nei)(nei)徑電(dian)(dian)(dian)容。這(zhe)個(ge)(ge)(ge)電(dian)(dian)(dian)流(liu)值減少到(dao)0.6毫安在(zai)有(you)保障的(de)(de)(de)(de)(de)干預，以提(ti)(ti)高試用期(qi)重新(xin)啟動，從(cong)而減少對永久性故障的(de)(de)(de)(de)(de)情(qing)況(kuang)下(xia)，功率器(qi)件(jian)的(de)(de)(de)(de)(de)壓(ya)力。為VIPER17HN電(dian)(dian)(dian)源獲(huo)得自(zi)我(wo)供(gong)(gong)應(ying)從(cong)一(yi)激配(pei)置連接的(de)(de)(de)(de)(de)變壓(ya)器(qi)繞組。該(gai)(gai)電(dian)(dian)(dian)路(lu)提(ti)(ti)供(gong)(gong)電(dian)(dian)(dian)壓(ya)，理想情(qing)況(kuang)下(xia)，直(zhi)接成比例的(de)(de)(de)(de)(de)輸出電(dian)(dian)(dian)壓(ya)。在(zai)實踐中(zhong)，因為這(zhe)是(shi)沒(mei)有(you)Y型帽變壓(ya)器(qi)有(you)很高的(de)(de)(de)(de)(de)漏感，作為峰值初級電(dian)(dian)(dian)流(liu)增(zeng)(zeng)大selfsupply電(dian)(dian)(dian)壓(ya)的(de)(de)(de)(de)(de)增(zeng)(zeng)加。無論(lun)如何，由于廣泛內(nei)(nei)徑的(de)(de)(de)(de)(de)VIPER17HN電(dian)(dian)(dian)壓(ya)范圍的(de)(de)(de)(de)(de)情(qing)況(kuang)（從(cong)8.5 V至23五）正確(que)的(de)(de)(de)(de)(de)供(gong)(gong)應(ying)總是(shi)提(ti)(ti)供(gong)(gong)。內(nei)(nei)部MOSFET的(de)(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)限制(zhi)降低（從(cong)0.4的(de)(de)(de)(de)(de)面(mian)值）通過使(shi)用電(dian)(dian)(dian)阻R16連接到(dao)續針。

     有了(le)這個(ge)功(gong)(gong)能(neng)(neng)，IDlim定為280毫安，允許使用(yong)(yong)(yong)小型變壓(ya)(ya)(ya)器(qi)(qi)5 W輸(shu)(shu)出(chu)(chu)（EF12.6使用(yong)(yong)(yong)）在(zai)(zai)不飽和(he)(he)的(de)(de)(de)(de)風險(xian)。分(fen)壓(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)節(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)沒有安裝（所(suo)以(yi)禁用(yong)(yong)(yong)此功(gong)(gong)能(neng)(neng)），以(yi)節(jie)省(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)特(te)別(bie)是空載功(gong)(gong)耗。該VIPER17HN有幾個(ge)內置的(de)(de)(de)(de)功(gong)(gong)能(neng)(neng)，如抖動，以(yi)減少電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁干擾的(de)(de)(de)(de)問題，軟啟(qi)動頻(pin)率，和(he)(he)突發的(de)(de)(de)(de)低功(gong)(gong)耗模(mo)式(shi)(shi)工(gong)作在(zai)(zai)輕負載和(he)(he)無負載條件下(xia)。過(guo)(guo)流(liu)，過(guo)(guo)載和(he)(he)過(guo)(guo)溫(wen)保護也是在(zai)(zai)內部實(shi)施，并(bing)保證董事會的(de)(de)(de)(de)安全運行。在(zai)(zai)中(zhong)學方面，TSM1052恒(heng)壓(ya)(ya)(ya)恒(heng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)（CV / CC）的(de)(de)(de)(de)控制器(qi)(qi)使用(yong)(yong)(yong)。在(zai)(zai)TSM1052和(he)(he)光電(dian)(dian)(dian)(dian)(dian)(dian)(dian)二極(ji)管的(de)(de)(de)(de)光電(dian)(dian)(dian)(dian)(dian)(dian)(dian)耦(ou)合器(qi)(qi)是直接供(gong)應的(de)(de)(de)(de)輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)。其(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)TSM1052（為1.7 V分(fen)鐘(zhong)）電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)范(fan)圍內進行精確的(de)(de)(de)(de)恒(heng)定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)調節(jie)，即使輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)降(jiang)至1.5伏特(te)，1.6五，此范(fan)圍通常為所(suo)有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)應用(yong)(yong)(yong)不夠(gou)。當輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)低于這一限制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)監管，屬(shu)于損失，保護了(le)口腔扁平苔(tai)蘚調用(yong)(yong)(yong)和(he)(he)系統(tong)始于呃逆模(mo)式(shi)(shi)下(xia)工(gong)作。如果由于某種(zhong)原因(yin)，目前監管的(de)(de)(de)(de)需要到零輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)水平（即短(duan)路(lu)），它是足夠(gou)提供(gong)TSM1052和(he)(he)帶有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)等(deng)于輸(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)總(zong)和(he)(he)，從TR1C電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)二極(ji)管纏繞在(zai)(zai)前進的(de)(de)(de)(de)方式(shi)(shi)糾(jiu)正。有關(guan)這一具體原理圖，請使用(yong)(yong)(yong)TSM1052見應用(yong)(yong)(yong)筆記AN2448（超小型電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)更多(duo)信(xin)息）。

     R7的(de)電(dian)(dian)(dian)(dian)阻器被添加到(dao)提供(gong)電(dian)(dian)(dian)(dian)纜壓降(jiang)補償。較高的(de)輸(shu)(shu)(shu)出電(dian)(dian)(dian)(dian)流(liu)，輸(shu)(shu)(shu)出電(dian)(dian)(dian)(dian)壓越(yue)高，對電(dian)(dian)(dian)(dian)路板的(de)輸(shu)(shu)(shu)出端測量。這樣，對電(dian)(dian)(dian)(dian)纜連(lian)接的(de)單位負(fu)載電(dian)(dian)(dian)(dian)壓降(jiang)得到(dao)補償，同(tong)(tong)時提供(gong)給負(fu)載的(de)電(dian)(dian)(dian)(dian)壓基本不變(bian)。更多的(de)細節(jie)，因為r7同(tong)(tong)樣等于九(jiu)號，輸(shu)(shu)(shu)出電(dian)(dian)(dian)(dian)壓為增加0.2毫(hao)安的(de)輸(shu)(shu)(shu)出電(dian)(dian)(dian)(dian)流(liu)壓。這一數額(e)的(de)基礎上選擇為這些應(ying)用程序（通(tong)常約為0.2-0.3Ω）典型的(de)電(dian)(dian)(dian)(dian)纜電(dian)(dian)(dian)(dian)阻。